Exception: Calling TargetGuidByName with name='Unity-iPhone' is deprecated.【解決策】

Error内容

Exception: Calling TargetGuidByName with name='Unity-iPhone' is deprecated. There are two targets now, call GetUnityMainTargetGuid() - for app or GetUnityFrameworkTargetGuid() - for source/plugins to get Guid instead.

解決方法

PBXProject proj = new PBXProject();
string targetGuid = proj.TargetGuidByName("Unity-iPhone");

↓↓↓↓ 上記を以下のように変更する ↓↓↓↓

PBXProject proj = new PBXProject();
string targetGuid = proj.GetUnityMainTargetGuid();

 原因

Unity-iPhoneが複数存在しているため